What makes us think that mars must once have had an atmosphere that was warmer and had higher surface pressure?

You are standing on a cliff that is 75 m above the ocean and you see a ship that is 350 m from the bottom of the cliff. Find the angle of depression from you to the ship.

A closed loop conductor with radius 2.0 m is located in a changing magnetic field. If the maximum emf induced in the loop is 2.

A 45-mH ideal inductor is connected in series with a 60-Ω resistor through an ideal 15-V DC power supply and an open switch. If the switch is closed at time t = 0 s, what is the current 7.0 ms later?

Witch of the following object is not a practical example of gravity acting on a moving object? A. rain falls from the sky B. a car speeds up as a traffic light turns green C. a leaf falls from a tree and floats to the ground D.

What is the speed of sound at a temperature of 56°C? A: 316 meters/second B: 331 meters/second C: 365 meters/second D: 373 meters/second

What are the main activities involved in studying physics?

What is the energy that moves your arms and legs

A moving object can be in equilibrium. Explain.

If gravity puts a force of 3N an object, how much force would it put on an second object that was twice as heavy

Where did the asteroids in the asteroid belt come from?